exploit the possibilities

Red Hat Security Advisory 2012-1539-01

Red Hat Security Advisory 2012-1539-01
Posted Dec 4, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1539-01 - This package provides jabberd 2, an Extensible Messaging and Presence Protocol server used for XML based communication. It was discovered that the XMPP Dialback protocol implementation in jabberd 2 did not properly validate Verify Response and Authorization Response messages. A remote attacker able to connect to the jabberd's server-to-server communication port could possibly use this flaw to spoof source domains of the XMPP messages. Users of Red Hat Network Proxy 5.5 are advised to upgrade to this updated jabberd package, which resolves this issue. For this update to take effect, Red Hat Network Proxy must be restarted.

tags | advisory, remote, spoof, protocol
systems | linux, redhat
advisories | CVE-2012-3525
MD5 | e4fdead382f0a5533509aaad9b5f9e18

Red Hat Security Advisory 2012-1539-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Low: Red Hat Network Proxy server jabberd security update
Advisory ID: RHSA-2012:1539-01
Product: Red Hat Network Proxy Server
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1539.html
Issue date: 2012-12-04
CVE Names: CVE-2012-3525
=====================================================================

1. Summary:

An updated jabberd package that fixes one security issue is now available
for Red Hat Network Proxy 5.5 for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having low
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

2. Relevant releases/architectures:

Red Hat Network Proxy 5.5 (RHEL v.5) - s390x, x86_64
Red Hat Network Proxy 5.5 (RHEL v.6) - s390x, x86_64

3. Description:

This package provides jabberd 2, an Extensible Messaging and Presence
Protocol (XMPP) server used for XML based communication.

It was discovered that the XMPP Dialback protocol implementation in
jabberd 2 did not properly validate Verify Response and Authorization
Response messages. A remote attacker able to connect to the jabberd's
server-to-server communication port could possibly use this flaw to spoof
source domains of the XMPP messages. (CVE-2012-3525)

Users of Red Hat Network Proxy 5.5 are advised to upgrade to this updated
jabberd package, which resolves this issue. For this update to take effect,
Red Hat Network Proxy must be restarted. Refer to the Solution section for
details.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Run the following command to restart the Red Hat Network Proxy server:

# rhn-proxy restart

5. Bugs fixed (http://bugzilla.redhat.com/):

850872 - CVE-2012-3525 jabberd: Prone to unsolicited XMPP Dialback attacks

6. Package List:

Red Hat Network Proxy 5.5 (RHEL v.5):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHNPROXY/SRPMS/jabberd-2.2.8-20.el5sat.src.rpm

s390x:
jabberd-2.2.8-20.el5sat.s390x.rpm
jabberd-debuginfo-2.2.8-20.el5sat.s390x.rpm

x86_64:
jabberd-2.2.8-20.el5sat.x86_64.rpm
jabberd-debuginfo-2.2.8-20.el5sat.x86_64.rpm

Red Hat Network Proxy 5.5 (RHEL v.6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/RHNPROXY/SRPMS/jabberd-2.2.8-20.el6sat.src.rpm

s390x:
jabberd-2.2.8-20.el6sat.s390x.rpm
jabberd-debuginfo-2.2.8-20.el6sat.s390x.rpm

x86_64:
jabberd-2.2.8-20.el6sat.x86_64.rpm
jabberd-debuginfo-2.2.8-20.el6sat.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2012-3525.html
https://access.redhat.com/security/updates/classification/#low

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2012 Red Hat, Inc.
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